On the Freundlich red shift

✍ Scribed by A. G. Gasanalizade

• Publisher: Springer
• Year: 1971
• Tongue: English
• Weight: 253 KB
• Volume: 20
• Category: Article
• ISSN: 0038-0938
• DOI: 10.1007/bf00159783

✦ Synopsis

The Freundlich red shift of wavelengths in the solar spectrum is discussed. Born's approach on the photon-photon interaction is used in conjunction with Melvin's recalculation of Freundlich's universal constant in order to derive the cross-section for scattering in the solar atmosphere. The new cross-section appears to be (a o) = 1.58 • 10 -is cm z, which is about one thousand times Born's estimate for the effective cross-section. However, a modified value of the constant (a o) is in a good agreement with the one obtained by Ter Haar by scattering process methods, which leads to 10 -is cm 2 for the photon-photon interaction cross-section of the solar atmosphere. A new expression for Freundlich's red shift formula is obtained. Some numerical examples are given and some interesting aspects of Freundlich's parameters are discussed.